No puking, just gagging

Miri • 7/17/16 8lb13oz and baby boy due 1/2/19!!
I'm 6 1/2 weeks now, and I smell everything now and it's making me sick to my stomach, Besides the morning nausea and after a full meal, that's the only time I've been sick throughout the day. But I'm not puking, I'm gagging a lot though. I hate puking, it's one of the worst things that can happen to me, so I hold it back and just gag a lot. Is this normal/okay or is there a reason I need to puke? :(